Sandra A. Mathur, DO
Pediatrics Physician · Diamond Bar, CA
Sandra A. Mathur, DO is a pediatrics physician with a practice address in Diamond Bar, California, and NPI 1841250974, issued on Mar 24, 2006. Check the license (California 20A6905, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Sandra A. Mathur
- Credential
- DO
- Primary taxonomy
- Pediatrics Physician 208000000X
- License number
- 20A6905 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1514 Valley Vista Dr, Diamond Bar, CA 91765
- Phone
- (909) 860-1144
- Enumerated
- Mar 24, 2006
- Record last updated
- Feb 8, 2022
- Fax
- (909) 860-3526
- Entity
- Type 1 · individual
8 nearest pediatrics physician records → All 9,272 in California → Look up another NPI →
Also registered at 1514 Valley Vista Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Wilfredo Alejo, M.D.Pediatrics Physician1114990785
- Silvia Alonzo, MS, PA-CMedical Physician Assistant1942586623
- Jing Chen, M.D.Pediatrics Physician1699208942
- William FenertyFamily Medicine Physician1184625915
- Brian Koffman, MDFamily Medicine Physician1326049164
- Keli Layton-Cunnigan, PAPhysician Assistant1063613958
Verify Sandra A. Mathur in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 20A6905Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $145.89
7 payments; by number, the most common kind was food and beverage; the largest payer was GlaxoSmithKline, LLC. The 21,580 providers of this specialty with any payment received $842.05 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Sandra A. Mathur among 9,272 pediatrics physician records in California
Sandra A. Mathur, DO is one of 9,272 pediatrics physician records with a practice address in California. 31% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 4% of them.
- NPI issued2006 · 4% of these records are older, 56% newer
- In a Medicare fileYes · 31% of these records are
- In the CMS Doctors and Clinicians fileNo · 8% of these records are
- Record last updated2022 · 65% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208000000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Pediatrics Physician providers in California
There are 9,272 pediatrics physician records in California.
All 9,272 in California → Every provider in Diamond Bar → Pediatrics Physician nationwide →
The 8 pediatrics physician records with the nearest ZIP codes
- Wilfredo Alejo, M.D.Diamond Bar, CA 917651114990785
- Jing Chen, M.D.Diamond Bar, CA 917651699208942
- Rama Venkat, M.DDiamond Bar, CA 917651740340041
- Antonio Garcia, MDPomona, CA 917661821177833
- Catareya Liep, MDOntario, CA 917641780745448
- Alexandora SiporinOntario, CA 917641285807990
- Lisa Warren, D.O.Pomona, CA 917661124080544
- Pramila Agrawal, M.D.Pomona, CA 917671528039500
Common questions
What is Sandra A. Mathur, DO's NPI number?
Sandra A. Mathur, DO's National Provider Identifier (NPI) is 1841250974, issued on Mar 24, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Sandra A. Mathur, DO located?
The NPPES record lists a practice address at 1514 Valley Vista Dr, Diamond Bar, CA, 91765. Phone: (909) 860-1144. Providers update this record themselves, so call before visiting.
How can I verify Sandra A. Mathur, DO's license?
NPPES lists California license number 20A6905, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.